(19)
(11) EP 1 293 399 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.11.2003 Bulletin 2003/47

(43) Date of publication A2:
19.03.2003 Bulletin 2003/12

(21) Application number: 02020435.0

(22) Date of filing: 11.09.2002
(51) International Patent Classification (IPC)7: B60R 21/01
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 18.09.2001 JP 2001283694

(71) Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHA
Minato-ku Tokyo (JP)

(72) Inventor:
  • Ota, Atsuo, K. K. Honda Gijutsu Kenkyusho
    Saitama (JP)

(74) Representative: Liska, Horst, Dr.-Ing. et al
Weickmann & Weickmann Patentanwälte Postfach 86 08 20
81635 München
81635 München (DE)

   


(54) Collision detecting apparatus for vehicle


(57) The invention provides a collision detecting apparatus for a vehicle, including an integrating means for cumulatively integrating an output from an acceleration sensor when the output exceeds a specific calculation start level, and a collision detecting means for outputting a collision signal when a cumulative integral value calculated by the integrating means exceeds a threshold value, wherein the collision detecting apparatus is intended to accurately perform collision decision by preventing the occurrence of erroneous detection based on a vibration waveform of acceleration of the vehicle due to, for example, riding past a stepped portion.
The collision detecting apparatus includes a vibration waveform detecting means(W) for detecting that an output waveform from the acceleration sensor(s) is a specific periodical vibration waveform, and a correcting means(H) for correcting the threshold value(α) on the basis of detection of the vibration waveform by the vibration waveform detecting means(W) so as to lower a detecting sensitivity of the collision detecting means (C).






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